Gastec 192 아크릴로 니트릴 CH2 : CHCN 빠른 측정 검지관 (0.2 ~ 32ppm)

Name: Gastec 192 아크릴로 니트릴 CH2 : CHCN 빠른 측정 검지관 (0.2 ~ 32ppm)
Brand: Gastec

제조사Gastec(이 브랜드의 다른 제품 보기)

Model192

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안전한 결제

품질 보장

간편 교환 및 반품

배송 가능

Indicator: 0.5 to 10 ppm
Measuring Range:
+ 0.2 to 0.5 ppm , Number of Pump Strokes 4
+ 0.5 to 10 ppm, Number of Pump Strokes 2
+ 10 to 32 ppm , Number of Pump Strokes 1
Sampling Time: 2 minute per pump stroke
Colour Change: Yellow → Red
Reaction Principle:
+ CH2:C(CH3)CN+ Cr6+ + H2SO4 → HCN
+ 2HCN + HgCl2 → 2HCl+Hg(CN) 2
+ HCl+Base → Chloride
Coefficient of Variation: 10% (for 0.5 to 2 ppm), 5% (for 2 to 10 ppm)
Nr. of tests: 5
Pump: GV-100S/110S

Catalog

Manual

Performance

Measuring Range

0.2 to 0.5 ppm

0.5 to 10 ppm

10 to 32 ppm

Number of Pump Strokes

Correction Factor

0.4

3.2

Sampling Time

2 minutes per pump stroke

Detecting Limit

0.1 ppm (n=4)

Colour Change

Yellow → Red

Reaction Principle

CH2:C(CH3)CN+ Cr⁶⁺ + H2SO4 → HCN
2HCN + HgCl2 → 2HCl+Hg(CN) 2
HCl+Base → Chloride

Coefficient of Variation

10% (for 0.5 to 2 ppm), 5% (for 2 to 10 ppm)

Shelf Life

3 Years

Corrections for temperature & humidity

Unnecessary

Store the tubes at cool and dark place.

Possible coexisting substances and their interferences (NOTE)

Substance

Concentration

Interference

Change colour by itself to

Nitriles (C3)		+	Red
Acetone cyanohidrin		+	Red
Alcohols, Esters, Ketones	20 ppm		No
Aromatic hydrocarbons	20 ppm		No
Hydrogen chloride, Hydrogen cyanide		No	No

Calibration gas generation

Diffusion tube method

TLV-TWA	TLV-STEL	Explosive range
1 ppm(2014)	-	-

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